Spray-burner.



J. SNEDDEN.

SPRAY BURNER.

APPLICATION FILED 00121, 1912.

1,079,272, Patented Nov. 18, 1913.

& 1:19,? W T 7,? 4

lam

WITNESSES INVENTOR gwf jww 7 a =7 JJ'hfii/Z B@ Allomeys STATES FATE-iii:OFFICE.

mas sminmm, or wronrra, Assumes. or ONE-THIRD 'ro ALBERT men mummy, ormomma, KANSAS.

s'rnir-iiuiimn.

079,272. sp fl mm mm. 7 PatentedNov.18 ,1913.

Application filed October 7, 1912. Serial No. 724,869.

all whom it inc concern: provided with a stufiing box K is con- Be itknown at I, Jams SNEDDEN, a structed to close this passage entirely or;izen oi the United States, residing at to open it at different degrees.This ad- 'ichita, in the county of Sedgewick and justing lug has anexternal head K by ate of Kansas, have invented certain new means 0which it can be re ulated from the outside. On the other si e of themain .d useful Im rovements in Spra -Burners,

which the ollowing is a specification. My invention relatesto certainimproveants in burners for fuel oil or hydro-carn burners and isdesigned to cooperate th 2. motor driven air and oil supply, andparticularly an improvement on my deme for the hydrocarbon furnacedescribed my co-pending application No. 688,108, ed April 2, 1912.

One object of the invention is to provide burner which not onlyregulates the quany of combustion mixture injected into the mace, butalso regulates the composition that mixture whereb a smaller or greater'oportion of oil is a mitted to mix with e air.

Another object of the invention is to rode an automatic check in theburner, w ich n be set by hand for a certain desired essure of theentering oil. If this ressure not reached, the oil supply will eautoatically shut off, until the pump is able deliver the oil at thedesired pressure. v these several features of the invention justment ofthe burner is possible for rying temperatures.

The several features of the invention are own in the accompanyingdrawings ierein:

Figure 1 is a transverse section along to 11 of Fig. 2; Fig. 2 is avertical secm on line 22 of Fig. 1 and Fig. 3 a diaammaticrepresentation of the furnaceth the burner in position.

In the different views in the drawing E presents the pipe supplying theair to the lve and F is the oil pipe eading from a itable pump to thburner. G is the burner casin in which is ated the main valve spindle H,which gulates the quantity of combustion mixre permitted to enter theburner nozzle through the opening C.

A passage A connecting the air pipe E 1th the seat of the main spindle Hadmits e air into the burner, and an adjusting ug K, threaded in theburner casing G and spindle H is symmetrically arranged a similaradjusting plug J for regulating the oil supply. This oil plug is alsothreaded in the burner casing G and has an external head J and astufling box J The oil from the oil pipe F enters the housing from thepassageB where it is checked by the ball N normally closing the assage Band actuated by a spring S. he strength of this sprin is regulated bymeans of the screw M w ich is also provided with a stufiing box L.

It will be noted that the air passage A is considerably larger in crosssection than the oil passage B admitting the oil into the seat of themain spindle H. The importance of this feature is generally overlookedby designers of these kinds of burners, causing an im roper kind ofcombustion on account of the wrong proportion of oil and air in themixture. The areas of these passages A and B have been so selected thatby normal running, the passages may be fully opened, that is the plugs Kand J may be drawn back out of the way. When the adjusting plu s K and Jhave been set to give the rig t proportions of the mixture, the mainspindle H may thereupon be set to regulate the proper degrees 0 heat.

The automatic closing device of the oil passage B by means of the ball Nis as already described dependent on the pressure of the spring S, whichpressure is intended to be varied in accordance with the different oilpressure at high or low temperature as in mild or cold weather. Inpractice, I regulate the pressure on the spring to the pump pressure onthe oil, so that should the pum or its mechanism fail to give the desipressure on the oil, the passage B will be automatically closed by theball N and the spring S, and no more oil admitted into the burner.

After having once been set for the proper mixture of the oil and theair, the adjusting plugs K and J need not, under ordinary circumstancesbe reset unless the assages in time should become clogged, w lenreadjustment would be advisable.

I claim:

1. In a hydrocarbon burner device, in combination with a fuel mixturepassage, an oil passa e and an air passage in communication with saidfuel mixture passage; the maximum cross sections of the oil passage andthe air passage bein pro rtioned to correspond to the quantities 0 oiland air entering into the fuel mixture; and said oil passage beingprovided with an automatic resisting valve yieldingly seated against theflow of oil through sai oil passage and having'l means for regulatingits resistance at W1 2. In a h drocarbon burner the combination with aurner casing, a mam valve spindle and a seat therefor for admitting thecompress:d on m xture to the burner, an oil pipe an an air 1pe an airpassage connecting the air i pe lmh the seat of said mam spindle, an anoil passage connecting a]; pipe with sgidlvalve an an adu a epu meal 01assage orreguat-ing the c oss section tllereo the maximum cross sectionof said oil passage bei smaller than the maximum cross section 0 saidair passage; of a device in said oil passage for automatically admittingabove a fixed minimum pressure, said device comprising a ball, a setscrew and a spring abutting against said set screw and said all; wherebysaid oil sup 1y will be automatically cut oif when the oil pressure isless than desired; the minimum amount of pressure being regulatedthrough the adjustment of the compression of said spring by means of theset screw.

The foregoing s ification signed at Wichita, Kansas, this 16th day ofSeptember, 1912.

J AMES SNEDDEN.

In presence of- WAIUI'ER J. BRANT, Anon Susanna.

fuel

